Observer Pattern in .NET

using System;

namespace ObserverPattern
{
	/// <summary>
	/// Summary description for Class1.
	/// </summary>
	class Client
	{
		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main(string[] args)
		{
			BangaloreAirlines AirLines= new BangaloreAirlines("EC 2012",2230);
			NationalTravels National=new NationalTravels();
			SouthernTravels Southern=new SouthernTravels();

			AirLines.UpdateEvent += new BangaloreAirlines.UpdateHandler(National.UpdateBangaloreAirlinesRout);
			AirLines.UpdateEvent += new BangaloreAirlines.UpdateHandler(Southern.UpdateBangaloreAirlinesRout);

			AirLines.AddNewRout();
			Console.ReadLine();
		}
	}
}